Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20081209 (number)

20081209 is an odd 8-digits composite number following 20081208 and preceding 20081210. In scientific notation, it is written as 2.0081209 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 20002816 positive integers (up to 20081209) that are relatively prime to 20081209.

Interesting facts

20081209 has 4 divisors, whose sum is 20159604
The reverse of 20081209 is 90218002
Previous prime number is 257

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty million eighty-one thousand two hundred nine

Notation

Scientific notation	2.0081209 × 10^7
Engineering notation	2.0081209 × 10^6

Prime Factorization of 20081209

Prime Factorization 257 × 78137

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20081209	Product of the distinct prime numbers

The prime factorization of 20081209 is 257 × 78137. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 1, 27, 54, 238, 148, 6973, 8102, 65408, 73666, 517822, 147172, 6143189, 3681259, 83199891, 30639490, 894763316, 416365927, 5377570725, 7477285047

Basic calculations (n = 20081209)

Multiplication

n×y

n×2	40162418
n×3	60243627
n×4	80324836
n×5	100406045

Division

n÷y

n÷2	10040604.5
n÷3	6693736.3333333
n÷3	5020302.25
n÷5	4016241.8

Exponentiation

n^y

n²	403254954901681
n³	8.0978470296662E+21
n⁴	1.6261455865276E+29
n⁵	3.2654969387488E+36

Nth Root

^y√n

²√n	4481.2061992281
³√n	271.80865741975
⁴√n	66.941812040219
⁵√n	28.877392196076

Divisors of 20081209

1, 257, 78137, 20081209

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20081208	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20081209 can be divided by 4 positive divisors. The sum of these divisors (counting 20081209) is 1, the average is 0.25.

Base conversion 20081209

Base	System	Value
2	Binary	1001100100110101000111001
3	Ternary	1101210020020111
4	Quaternary	1030212220321
5	Quinary	20120044314
6	Senary	1554224321
8	Octal	114465071
10	Decimal	20081209
12	Duodecimal	68850a1
16	Hexadecimal	1326a39
20	Vigesimal	65a309
36	Base36	byerd

Cryptographic Hash Functions

md5	ced5af6c5a18213f9f345250c651d16e
sha1	47c71817a7fdaa2405ffd91686d03beaec8c5fcf
sha256	611469007a252effaf7dc74fe9b5f7e266eb4604d76aad18d96369bafa6335c7
sha512	78e4940d07dba6608f360e207edfb1dc3203e24a08547fc0d2571137b2bdbca7e43b622ab2d409d5339440ef0237c91f27853ffdd6580476d4b1447d74905a21
ripemd-160	cbd0d8e515290fea584ef033e64fce08666c24fa

20081209 as geometric shapes

Circle

Radius = n

Diameter	40162418
Circumference	126173957.3392
Area	1.2668628038428E+15

Sphere

Radius = n

Volume	3.3920182317724E+22
Surface area	5.0674512153712E+15
Circumference	126173957.3392

Square

Length = n

Perimeter	80324836
Area	403254954901681
Diagonal	28399118.116649

Cube

Length = n

Surface area	2419529729410086
Volume	8.0978470296662E+21
Space diagonal	34781674.265409

Equilateral Triangle

Length = n

Perimeter	60243627
Area	1.746145175734E+14
Altitude	17390837.132705

Triangular Pyramid

Length = n

Surface area	1.746145175734E+14
Volume	9.5434042461472E+20
Height	9466372.7055496